import axios from 'axios'
import {
  MessageBox,
  Message
} from 'element-ui'
import store from '@/store'
import {
  getToken,
  setToken,
  removeToken
} from '@/utils/auth'
import {
  refreshToken
} from 'menucontrol'
import router from '@/router'
// create an axios instance
const service = axios.create({
  // baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  baseURL: "/api",
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      // config.headers['X-Token'] = getToken()
      config.headers.Authorization = getToken();
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
   */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    // if (res.code == 401) {
    //   if (!isRefreshing) {
    //     isRefreshing = true
    //     // 说明token过期了,刷新token
    //     return refreshToken({
    //       refreshToken: localStorage.getItem("refreshToken")
    //       // refreshToken: getToken()
    //     }).then(res => {
    //       // 刷新token成功，将最新的token更新到header中，同时保存在localStorage中
    //       const {
    //         token
    //       } = res.data
    //       // console.log(res);
    //       service.setToken(token)
    //       // 获取当前失败的请求
    //       const config = response.config
    //       // 重置一下配置
    //       config.headers.Authorization = token
    //       // config.baseURL = '' // url已经带上了/api，避免出现/api/api的情况
    //       // 重试当前请求并返回promise
    //       return service(config)
    //     }).catch(res => {
    //       console.error('refreshtoken error =>', res)
    //       //刷新token失败，神仙也救不了了，跳转到首页重新登录吧
    //       // window.location.href = '/'
    //     }).finally(() => {
    //       isRefreshing = false
    //     })
    //   }
    // }

    // if (res.code === 3404) {
    //   // to re-login
    //   //刷新token
    //   refreshToken({
    //     refresh_token: localStorage.getItem("refreshToken")
    //   }).then(res => {
    //     if (res.code == 0) {
    //       setToken(res.data.token)
    //     } else {
    //       store.dispatch('user/resetToken').then(() => {
    //         if (res.code == 3404) {
    //           removeToken()
    //         }
    //         location.reload()
    //       })
    //     }
    //   })

    // }
    if (res.code !== 0 ) {
      Message({
        message: res.msg || 'Error',
        type: 'error',
        duration: 5 * 1000
      })
    if (res.code === 3404) {
      // to re-login
      //刷新token
      refreshToken({
        refresh_token: localStorage.getItem("refreshToken")
      }).then(res1 => {
        if (res1.code == 0) {
          setToken(res1.data.token)
          const config = response.config
          // 重置一下配置
          config.headers.Authorization = res1.data.token
          // config.baseURL = '' // url已经带上了/api，避免出现/api/api的情况
          // 重试当前请求并返回promise
          return service(config).then(()=>{
            Message({
              type:'success',
              message:'刷新token成功！'
            })
            //跳转当前页
            router.push(router.history.pending.fullPath)
          })
        } 
      })

    }
    //refreshToken也过期了
    if (res.code === 3405) {
      removeToken()
      localStorage.removeItem('refreshToken')
      router.push('/login')      
    }



      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
        // to re-login
        MessageBox.confirm('你已被登出，可以取消继续留在该页面，或者重新登录', '确定登出', {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload()
          })
        })
      }
      return Promise.reject(new Error(res.message || 'Error'))
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.msg,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
